6215-M bearing: complete specifications & equivalents
The 6215-M is a ISO 15 radial bearing sized 75 x 130 x 25 mm (bore x OD x width). Verify dimensions against the official catalog before ordering.
Specification table
| Parameter | Value |
|---|---|
| Brand | SKF |
| Bore diameter d | 75 mm |
| Outer diameter D | 130 mm |
| Width B | 25 mm |
| Material | GCr15 |
| Seal / shield | open |
| Internal clearance | CN |
| Tolerance class | P0 |
| Cage | brass |
| Basic dynamic load rating C | 68.9 kN |
| Basic static load rating C0 | 49 kN |
| Fatigue load limit Pu | 2.04 kN |
| Reference speed (thermal) | 10000 rpm |
| Limiting speed (mechanical) | 9500 rpm |
| Operating temperature | -40 to +120 °C |
| Mass | 1400 g |
| Manufacturer designation | 6215 M |
| Standard | ISO 15 |
| Catalog version | SKF PUB BU/P1 17000/1 EN (Oct 2018) |
| Last verified | 2026-09-27 |
Source: catalog reference (SKF PUB BU/P1 17000/1 EN (Oct 2018)) · extracted 2026-09-27
Parameters extracted from the official SKF Rolling Bearings catalogue (SKF PUB BU/P1 17000/1 EN (Oct 2018)); SKF® and SKF Explorer® are trademarks of AB SKF, used here for identification only — mpnbase is not an authorized SKF distributor. Boundary dimensions are ISO 15 interchangeable; current production values may differ, verify at skf.com.
Dimensions in inches & 6200-series range
| Bore d | 2.953 in |
|---|---|
| Outer diameter D | 5.118 in |
| Width B | 0.984 in |
| ISO bore code | 15 |
| Radial section height (D−d)/2 | 27.5 mm |
| Smallest bore in 6200-series | 3 mm |
| Largest outer diameter in 6200-series | 540 mm |
| Width range across 6200-series | 2.5–85 mm |
| Bore position in 6200-series (smallest first) | 24 of 45 |
| Bore above smallest 6200-series size | 72 mm |
Cross references & equivalents
| Equivalent model | Brand | Match level | Note |
|---|---|---|---|
| 6215-RSR | NSK | full Dimensions and internal design equivalent — standard interchange. | NSK counterpart NSK 6215VV on the same 75×130×25 mm envelope with ratings within 10 % — interchange after checking seal, cage and precision details on both pages. |
| 215 | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×25 mm envelope as SKF 215, but catalogue C/C0 differ (68.9/49 kN vs 72.1/72 kN) — envelope match only after a load check. |
| 215-ZZ | SKF | partial Main dimensions match; tolerances, seals or internal clearance differ. | Same 75×130×25 mm envelope as SKF 215-2Z, but catalogue C/C0 differ (68.9/49 kN vs 72.1/72 kN) — envelope match only after a load check. |
| 6215 | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6215 (open arrangement) shares the 75×130×25 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6215-ZZ | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6215-2Z (two non-contact shields) shares the 75×130×25 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
| 6215-2RS | SKF | full Dimensions and internal design equivalent — standard interchange. | SKF SKF 6215-2RS1 (two contact elastomer seals) shares the 75×130×25 mm envelope with ratings within 10 % — execution variant of the same size; boundary dimensions interchangeable. |
Interchange levels: full standard interchange · partial verify parameters · verify manual confirmation required. Links resolve to the equivalent model's specification page where available.
How the 6215-M model number is decoded
In the 6200-series, the last two digits encode the bore: 6215 carries code 15 = 75 mm (code × 5). The envelope is 75×130×25 mm (2.953×5.118×0.984 in) with a 27.5 mm radial section height, C 68.9 kN, C0 49 kN and Pu 2.04 kN. The open 6215 M carries no shields or seals and relies on application lubrication and external sealing. The M suffix identifies the machined brass cage execution, a separate order number from the pressed-steel version. Limiting speed 9500 r/min, catalogue mass 1400 g.
Typical equipment & failure modes
Common applications
- machine tool auxiliaries
- agricultural gearboxes
- industrial electric motors
- gearboxes and speed reducers
Known failure patterns
- contamination wear when the open arrangement is used without external seals
- lubricant starvation where no regreasing interval is maintained
- fretting corrosion on a creeping shaft or housing seat
- cage damage from running beyond the limiting speed
Selection pitfalls — read before you substitute
- Catalogue ratings for 6215-M (C 68.9 kN, C0 49 kN) are SKF figures from PUB BU/P1 17000; geometry revisions can change ratings without changing the designation, so keep the catalogue edition with the specification.
- Deep-groove geometry tolerates only minutes of misalignment; if the 130 mm housing bore cannot be aligned, move to a self-aligning bearing rather than shimming 6215-M.
- The M suffix on 6215-M denotes a machined brass cage: it is the choice for high speeds, marginal lubrication and shock/vibration duty, and it is temperature-tolerant where polymer cages are not — the 1400 g quoted mass includes the heavier cage.
- Open 6215-M needs external sealing at the arrangement level; in dusty housings its life depends entirely on those external seals and the regreasing schedule.
- Plan a relubrication interval for 6215-M; run-to-failure on open deep-groove bearings is the dominant early-failure cause.
- Assign interference to the rotating ring: on a conventional shaft-mounted 75 mm position the inner ring rotates, so use a k5/m6 shaft seat with an H7 housing — reverse the logic if the outer ring rotates.
Frequently asked questions
What are the dimensions of 6215-M?
The SKF 6215 M measures 75 mm bore × 130 mm OD × 25 mm width (2.953 × 5.118 × 0.984 in), mass about 1400 g. It is open, with no shields or seals.
How does the bore code in 6215 work?
The final two digits of 6215 are bore code 15, multiplied by 5 to give 75 mm.
What load can 6215-M take?
Catalogue values for 6215 M: dynamic C 68.9 kN, static C0 49 kN, fatigue limit Pu 2.04 kN. Use C in life calculation and C0 for static checks at 75 mm bore.
What is the speed rating of 6215-M?
SKF lists a 10000 r/min thermal reference speed and a 9500 r/min mechanical limiting speed for 6215 M; real limits also depend on lubrication and fits.
Reviewed & verified by the MPN Base engineering desk against source catalog SKF PUB BU/P1 17000/1 EN (Oct 2018) on 2026-09-27. Read our editorial & correction policy.